The development of slight breaks in a coating that do not penetrate to the underlying surface.

A metastable lamellar aggregate of ferrite and cementite resulting from the transformation of austenite at temperatures above the bainite range.

The range of the stress-intensity factor during a fatigue cycle.

Foreign substance which comes from the environment, adhering to a surface of a material

Ability of a metal to withstand corrosion in a given corrosion system.

A cell developed in an electrolyte resulting from electrical contact between two dissimilar metals. See galvanic corrosion.

The ratio of the electrochemical equivalent current density for a specific reaction to the total applied current density.

A positively charged ion that migrates through the electrolyte toward the cathode under the influence of a potential gradient. See also anion and ion.

A substance that produces depolarization.

The mass of unit volume of a material at a specified temperature.

An anode that is insoluble in the electrolyte under the conditions prevailing in the electrolysis.

Splitting (fracture) of a crystal on a crystallographic plane of' low index.

A galvanic cell resulting from difference in oxygen concentration between two locations; See differential aeration cell.

A pair of dissimilar conductors, commonly metals, in electrical contact. See also galvanic corrosion.

The liquid material remaining from pulpwood cooking in the soda or sulfate paper-making process.

The number of cycles of stress that can be sustained prior to failure under a stated test condition.

Aging induced by rapid cooling after solution heat treatment.

(Galvanic Corrosion) Corrosion resulting from dissimilar metal contact.

A compound with a central atom or ion bound to a group of ions or molecules surrounding it. Also called coordination complex. See also chelate, complexation, and ligand.

A movement of electrons in an external circuit connecting an anode and cathode in a corrosion cell; the current flow is arbitrarily considered to be in an opposite direction to the electron flow.